/* tc-aarch64.c -- Assemble for the AArch64 ISA
- Copyright (C) 2009-2015 Free Software Foundation, Inc.
+ Copyright (C) 2009-2016 Free Software Foundation, Inc.
Contributed by ARM Ltd.
This file is part of GAS.
static struct hash_control *aarch64_barrier_opt_hsh;
static struct hash_control *aarch64_nzcv_hsh;
static struct hash_control *aarch64_pldop_hsh;
+static struct hash_control *aarch64_hint_opt_hsh;
/* Stuff needed to resolve the label ambiguity
As:
otherwise return FALSE.
Accept only one occurrence of:
- 8b 16b 4h 8h 2s 4s 1d 2d
+ 8b 16b 2h 4h 8h 2s 4s 1d 2d
b h s d q */
static bfd_boolean
parse_neon_type_for_operand (struct neon_type_el *parsed_type, char **str)
first_error (_("missing element size"));
return FALSE;
}
- if (width != 0 && width * element_size != 64 && width * element_size != 128)
+ if (width != 0 && width * element_size != 64 && width * element_size != 128
+ && !(width == 2 && element_size == 16))
{
first_error_fmt (_
("invalid element size %d and vector size combination %c"),
nlen = strlen (newname);
#endif
- nbuf = alloca (nlen + 1);
+ nbuf = xmalloc (nlen + 1);
memcpy (nbuf, newname, nlen);
nbuf[nlen] = '\0';
the artificial FOO alias because it has already been created by the
first .req. */
if (insert_reg_alias (nbuf, old->number, old->type) == NULL)
- return TRUE;
+ {
+ free (nbuf);
+ return TRUE;
+ }
}
for (p = nbuf; *p; p++)
insert_reg_alias (nbuf, old->number, old->type);
}
+ free (nbuf);
return TRUE;
}
static bfd_boolean
parse_half (char **str, int *internal_fixup_p)
{
- char *p, *saved;
- int dummy;
+ char *p = *str;
- p = *str;
skip_past_char (&p, '#');
gas_assert (internal_fixup_p);
else
*internal_fixup_p = 1;
- /* Avoid parsing a register as a general symbol. */
- saved = p;
- if (aarch64_reg_parse_32_64 (&p, 0, 0, &dummy, &dummy) != PARSE_FAIL)
- return FALSE;
- p = saved;
-
if (! my_get_expression (&inst.reloc.exp, &p, GE_NO_PREFIX, 1))
return FALSE;
return o->value;
}
+/* Parse an operand for a PSB barrier. Set *HINT_OPT to the hint-option record
+ return 0 if successful. Otherwise return PARSE_FAIL. */
+
+static int
+parse_barrier_psb (char **str,
+ const struct aarch64_name_value_pair ** hint_opt)
+{
+ char *p, *q;
+ const struct aarch64_name_value_pair *o;
+
+ p = q = *str;
+ while (ISALPHA (*q))
+ q++;
+
+ o = hash_find_n (aarch64_hint_opt_hsh, p, q - p);
+ if (!o)
+ {
+ set_fatal_syntax_error
+ ( _("unknown or missing option to PSB"));
+ return PARSE_FAIL;
+ }
+
+ if (o->value != 0x11)
+ {
+ /* PSB only accepts option name 'CSYNC'. */
+ set_syntax_error
+ (_("the specified option is not accepted for PSB"));
+ return PARSE_FAIL;
+ }
+
+ *str = q;
+ *hint_opt = o;
+ return 0;
+}
+
/* Parse a system register or a PSTATE field name for an MSR/MRS instruction.
Returns the encoding for the option, or PARSE_FAIL.
if (!o)
return NULL;
+ if (!aarch64_sys_ins_reg_supported_p (cpu_variant, o))
+ as_bad (_("selected processor does not support system register "
+ "name '%s'"), buf);
+
*str = q;
return o;
}
static void
output_info (const char *format, ...)
{
- char *file;
+ const char *file;
unsigned int line;
va_list args;
- as_where (&file, &line);
+ file = as_where (&line);
if (file)
{
if (line != 0)
/* Element size in bytes indexed by neon_el_type. */
const unsigned char ele_size[5]
= {1, 2, 4, 8, 16};
+ const unsigned int ele_base [5] =
+ {
+ AARCH64_OPND_QLF_V_8B,
+ AARCH64_OPND_QLF_V_2H,
+ AARCH64_OPND_QLF_V_2S,
+ AARCH64_OPND_QLF_V_1D,
+ AARCH64_OPND_QLF_V_1Q
+ };
if (!vectype->defined || vectype->type == NT_invtype)
goto vectype_conversion_fail;
/* Vector register. */
int reg_size = ele_size[vectype->type] * vectype->width;
unsigned offset;
- if (reg_size != 16 && reg_size != 8)
+ unsigned shift;
+ if (reg_size != 16 && reg_size != 8 && reg_size != 4)
goto vectype_conversion_fail;
- /* The conversion is calculated based on the relation of the order of
- qualifiers to the vector element size and vector register size. */
- offset = (vectype->type == NT_q)
- ? 8 : (vectype->type << 1) + (reg_size >> 4);
- gas_assert (offset <= 8);
- return AARCH64_OPND_QLF_V_8B + offset;
+
+ /* The conversion is by calculating the offset from the base operand
+ qualifier for the vector type. The operand qualifiers are regular
+ enough that the offset can established by shifting the vector width by
+ a vector-type dependent amount. */
+ shift = 0;
+ if (vectype->type == NT_b)
+ shift = 4;
+ else if (vectype->type == NT_h || vectype->type == NT_s)
+ shift = 2;
+ else if (vectype->type >= NT_d)
+ shift = 1;
+ else
+ gas_assert (0);
+
+ offset = ele_base [vectype->type] + (vectype->width >> shift);
+ gas_assert (AARCH64_OPND_QLF_V_8B <= offset
+ && offset <= AARCH64_OPND_QLF_V_1Q);
+ return offset;
}
vectype_conversion_fail:
inst.base.operands[i].prfop = aarch64_prfops + val;
break;
+ case AARCH64_OPND_BARRIER_PSB:
+ val = parse_barrier_psb (&str, &(info->hint_option));
+ if (val == PARSE_FAIL)
+ goto failure;
+ break;
+
default:
as_fatal (_("unhandled operand code %d"), operands[i]);
}
{
/* NOP = d503201f */
/* AArch64 instructions are always little-endian. */
- static char const aarch64_noop[4] = { 0x1f, 0x20, 0x03, 0xd5 };
+ static unsigned char const aarch64_noop[4] = { 0x1f, 0x20, 0x03, 0xd5 };
int bytes, fix, noop_size;
char *p;
|| (aarch64_reg_hsh = hash_new ()) == NULL
|| (aarch64_barrier_opt_hsh = hash_new ()) == NULL
|| (aarch64_nzcv_hsh = hash_new ()) == NULL
- || (aarch64_pldop_hsh = hash_new ()) == NULL)
+ || (aarch64_pldop_hsh = hash_new ()) == NULL
+ || (aarch64_hint_opt_hsh = hash_new ()) == NULL)
as_fatal (_("virtual memory exhausted"));
fill_instruction_hash_table ();
(void *) (aarch64_prfops + i));
}
+ for (i = 0; aarch64_hint_options[i].name != NULL; i++)
+ {
+ const char* name = aarch64_hint_options[i].name;
+
+ checked_hash_insert (aarch64_hint_opt_hsh, name,
+ (void *) (aarch64_hint_options + i));
+ /* Also hash the name in the upper case. */
+ checked_hash_insert (aarch64_pldop_hsh, get_upper_str (name),
+ (void *) (aarch64_hint_options + i));
+ }
+
/* Set the cpu variant based on the command-line options. */
if (!mcpu_cpu_opt)
mcpu_cpu_opt = march_cpu_opt;
struct aarch64_option_table
{
- char *option; /* Option name to match. */
- char *help; /* Help information. */
+ const char *option; /* Option name to match. */
+ const char *help; /* Help information. */
int *var; /* Variable to change. */
int value; /* What to change it to. */
char *deprecated; /* If non-null, print this message. */
struct aarch64_cpu_option_table
{
- char *name;
+ const char *name;
const aarch64_feature_set value;
/* The canonical name of the CPU, or NULL to use NAME converted to upper
case. */
struct aarch64_arch_option_table
{
- char *name;
+ const char *name;
const aarch64_feature_set value;
};
/* ISA extensions. */
struct aarch64_option_cpu_value_table
{
- char *name;
+ const char *name;
const aarch64_feature_set value;
};
| AARCH64_FEATURE_RDMA, 0)},
{"fp16", AARCH64_FEATURE (AARCH64_FEATURE_F16
| AARCH64_FEATURE_FP, 0)},
+ {"profile", AARCH64_FEATURE (AARCH64_FEATURE_PROFILE, 0)},
{NULL, AARCH64_ARCH_NONE}
};
struct aarch64_long_option_table
{
- char *option; /* Substring to match. */
- char *help; /* Help information. */
- int (*func) (char *subopt); /* Function to decode sub-option. */
+ const char *option; /* Substring to match. */
+ const char *help; /* Help information. */
+ int (*func) (const char *subopt); /* Function to decode sub-option. */
char *deprecated; /* If non-null, print this message. */
};
static int
-aarch64_parse_features (char *str, const aarch64_feature_set **opt_p,
+aarch64_parse_features (const char *str, const aarch64_feature_set **opt_p,
bfd_boolean ext_only)
{
/* We insist on extensions being added before being removed. We achieve
while (str != NULL && *str != 0)
{
const struct aarch64_option_cpu_value_table *opt;
- char *ext = NULL;
+ const char *ext = NULL;
int optlen;
if (!ext_only)
}
static int
-aarch64_parse_cpu (char *str)
+aarch64_parse_cpu (const char *str)
{
const struct aarch64_cpu_option_table *opt;
- char *ext = strchr (str, '+');
+ const char *ext = strchr (str, '+');
size_t optlen;
if (ext != NULL)
}
static int
-aarch64_parse_arch (char *str)
+aarch64_parse_arch (const char *str)
{
const struct aarch64_arch_option_table *opt;
- char *ext = strchr (str, '+');
+ const char *ext = strchr (str, '+');
size_t optlen;
if (ext != NULL)
/* ABIs. */
struct aarch64_option_abi_value_table
{
- char *name;
+ const char *name;
enum aarch64_abi_type value;
};
};
static int
-aarch64_parse_abi (char *str)
+aarch64_parse_abi (const char *str)
{
const struct aarch64_option_abi_value_table *opt;
size_t optlen = strlen (str);
};
int
-md_parse_option (int c, char *arg)
+md_parse_option (int c, const char *arg)
{
struct aarch64_option_table *opt;
struct aarch64_long_option_table *lopt;
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